Few things ruin a Sunday drive faster than a windshield that scatters sunlight like a disco ball or side glass so hazed you can’t tell if the car in your blind spot is a Mini or a Mack truck. Micro-scratches, acid-rain etching, and years of wiper wear don’t just hurt aesthetics—they refract light and strain your eyes at night. The good news? Professional-level clarity is now achievable in your own driveway, provided you pick the right car glass polishing kit and understand how to exploit it. Below, we’ll unpack every variable you should weigh before you click “add to cart,” from abrasive chemistry to pad ergonomics, so you can turn that frosted sheet of laminate into crystal without turning your wallet into shrapnel.
Whether you’re prepping for a concours, trying to delay a $900 windshield replacement, or simply chasing the satisfaction of a squeaky-clean view, the guidance that follows will steer you past marketing hype and toward measurable, swirl-free results.
Top 10 Car Glass Polishing Kit
Detailed Product Reviews
1. GLASS POLISH DIY 3” Windshield Polishing Kit for Car Glass Restoration, Remove Wiper Blade Damage, Fine Scratches, Haziness, and Water Spots, Restore Glass Clarity and Shine - GP21005
Overview:
GLASS POLISH GP21005 is a drill-powered 3-inch kit that promises showroom-clear windshields in minutes. Packing a universal arbor, two foam pads, and a proprietary compound, it targets the light haze, wiper chatter marks, and water spots that accumulate long before glass needs replacement.
What Makes It Stand Out:
Unlike hand creams that demand elbow grease, this kit exploits drill speed to cut polishing time to under ten minutes per window. The compound is aluminum-oxide based—hard enough to level fine scratches yet gentle enough to leave OEM glass distortion-free. A color-coded pad system (white for cut, yellow for finish) keeps the process foolproof.
Value for Money:
At $24.95 it’s cheaper than one professional glass-polish service, and the 2 oz bottle handles 6–8 windshields. Replacement pads cost $6, so the kit keeps paying for itself every rainy season.
Strengths and Weaknesses:
Pros: 5-minute setup; dramatic clarity gain on light defects; works on mirrors and headlights too.
Cons: Drill minimum 1,500 RPM required—weak cordless models stall; will not touch deep gouges or pitting; residue dust clings to rubber trim.
Bottom Line:
If your blades left ghost streaks or hard-water spots are dulling night vision, GP21005 is the cheapest, fastest DIY remedy before you consider a new windshield.
2. Griot’s Garage Fine Glass Polish, Car Window, Windshield Polishing Cleaner for Automotive and Home, Removes Stains and Water Spots, 11017, 16 oz
Overview: Griot’s Garage Fine Glass Polish is a specialized 16-ounce liquid formula designed to restore automotive and household glass surfaces to crystal-clear perfection. Priced at $28.99, this professional-grade polish targets mild water spots, mineral deposits, and stubborn stains that regular cleaners simply can’t handle. Whether you’re dealing with a spotted windshield or cloudy shower doors, this versatile solution promises to deliver showroom-quality results.
What Makes It Stand Out: Unlike harsh chemical cleaners that can damage glass over time, Griot’s formula strikes the perfect balance between effectiveness and gentleness. The polish extends wiper blade life by creating an ultra-smooth surface, reducing friction and wear. Its dual-purpose design works equally well on automotive glass and household surfaces like patio doors and shower enclosures, making it a smart investment for comprehensive glass care.
Value for Money: At $1.81 per fluid ounce, this premium polish sits in the higher price range, but delivers professional results that justify the investment. Considering its versatility across multiple surfaces and the money saved on replacement wiper blades, the cost-per-use becomes quite reasonable. One bottle typically treats an entire vehicle’s glass surfaces 8-10 times.
Strengths and Weaknesses: Pros: Gentle formula safe for regular use, multi-surface versatility, extends wiper life, professional-grade results, easy application process. Cons: Requires orbital polisher for optimal results, struggles with heavy mineral deposits, higher price point than basic glass cleaners, may need multiple applications for stubborn spots.
Bottom Line: Griot’s Garage Fine Glass Polish is a must-have for car enthusiasts and homeowners serious about glass maintenance. While it requires some elbow grease and proper tools, the spectacular results make it worth every penny.
3. Nu Finish Glass Restore & Repel Kit, Two Step Regimen for Car Windshield, Includes Polishing Compound, Ceramic Sealant, Precision Applicator Tool, and 2 Reusable Sponges
Overview:
Nu Finish Glass Restore & Repel Kit is a two-step windshield spa-day in a box: first you polish away years of haze, bugs, and wiper burns, then you lock in a transparent ceramic raincoat that laughs at storms. Everything you need—4 oz polish, 2 oz ceramic sealant, a clever precision applicator, and two reusable sponges—arrives for the price of a drive-through car-wash gift card.
What Makes It Stand Out:
Unlike single-step sprays that vanish after the first monsoon, the kit pairs a mild abrasive polish with a true SiO₂ ceramic sealant rated for 24-month durability. The applicator’s flat, angled head lets you work right to the A-pillar without hand cramps, and the sponges rinse clean for repeat use on headlights or marine glass.
Value for Money:
At $23.99 you’re buying roughly two professional glass-polish services; do it yourself twice and the kit pays for itself. Factor in the 2-year repellent coating (retail sealants alone run $15-20) and the math becomes a no-brainer for anyone who drives in rain, snow, or love-bug season.
Strengths and Weaknesses:
Pros: Restores optical clarity on pitted, water-spotted glass; dramatically improves night visibility in rain; kit contains ample product for a mid-size SUV plus side windows; straightforward 30-minute driveway job.
Cons: Must cure 90 minutes—no quick dash through drizzle; over-application can smear, requiring re-buff; not aggressive enough for deep rock-chip gouges.
Bottom Line:
If your wipers chatter or you squint through ghostly halos at night, park the Nu Finish kit in your cart. For twenty-four bucks you gain safer, clearer glass and two years of beaded-water theatrics every time it rains—DIY satisfaction included.
4. Glass Polishing Kit, 34Pcs/Set Multifunctional Scratch Remover Window Repair Tool, Cerium Oxide Polishing Powder Polishing Pad and Wheel for Windscreen and Glass
Overview:
The $16.55 Glass Polishing Kit is a 34-piece DIY bundle built around 8 oz of cerium-oxide powder—the same abrasive glassworkers use to polish out fine swirls. Bundled with felt wheels, hook-and-loop discs, mini backing pads and 25 sheets of wet/dry sandpaper, the set turns an ordinary drill into a micro glass shop aimed at windshields, mirrors, aquariums and even dull headlight lenses.
What Makes It Stand Out:
You get a pro-grade cerium-oxide quantity that usually costs more by itself, plus two uncommon felt “mushroom” wheels that reach curved auto glass without burning edges. The 2-inch pads match common drill chucks, so no specialized polisher is required, and the 25-sheet sandpaper progression (600-3000 grit) is included instead of being a separate purchase.
Value for Money:
Buying cerium oxide, felt bobs and assorted sandpaper individually would easily pass $25; here they arrive in a compact box for under $17. For anyone with one or two annoying windshield wiper scars or a glass tabletop blemish, the kit pays for itself the first time you don’t call a glazier.
Strengths and Weaknesses:
Pros: Complete grit ladder; washable felt pads; generous 8 oz polish; clear pictorial instructions.
Cons: No drill adapter or sponge interface for contours; powder cloud is messy—mask and tape surrounding paint; won’t fill deep pits, only surface haze.
Bottom Line:
If the scratch catches a fingernail, head to a professional. For superficial scuffs, water-spot etching or faint wiper trails, this bargain box delivers shop-level clarity in a 20-minute weekend project.
5. 133 PCS Sanding Disc Drill Polishing Kit Sanding Attachment, 3 Inch Wet Dry Headlight Restoration Kit, Hook and Loop Sandpaper Buffing Pads with Rotary Tools for Car Wood Metal Glass Resin Expoxy
Overview:
The 133-piece Sanding Disc Drill Polishing Kit is a one-stop collection that turns any corded or cordless drill into a mini detailing shop. Supplied in a tidy case are 3-inch hook-and-loop discs spanning 60-10,000 grit, two foam interface pads, a synthetic-wool finishing pad, and two rubber backing plates (¼” & ⅛” shanks). Everything needed to wet-sand headlights, de-fog taillights, polish epoxy river tables, or revive faded paint is here—no extra mandrels or adaptors required.
What Makes It Stand Out:
The grit ladder runs all the way to 10,000—rare in sub-$30 kits—letting you go from heavy scratch removal to mirror gloss without buying separate finishing paper. Color-coded tabs and laser-etched numbers remain readable even after repeated dunking, eliminating guesswork when you’re jumping from 800 to 2000 grit in a soapy bucket.
Value for Money:
At roughly twenty cents per disc, the set costs less than a single professional headlight restoration service. Washable wool pad and thick polyurethane backing plates survive multiple wet-sand cycles, so the kit keeps paying for itself on cars, boats, or even guitar finishes.
Strengths and Weaknesses:
- Grit range up to 10,000 and clearly labeled discs
- Backing plates fit ¼” and ⅛” collets—true plug-and-play
- Foam interface pad reduces swirl and extends disc life
- Synthetic wool sheds slightly on first use
- No quick-change shaft; you still need to hand-tighten the collet
Bottom Line:
For weekend detailers, wood-workers, or resin crafters, this 133-piece box delivers shop-grade results at disposable-kit price. If you already own a drill, it’s the cheapest gateway to glass-smooth finishes.
6. Glass Polish (3”) Glass Scratch Removal Kit for use with a Drill on All Glass Surfaces
Overview:
The Glass Polish 3-inch Glass Scratch Removal Kit is a drill-mounted, DIY answer to everyday glass damage. Designed for homeowners, car lovers, and renters alike, it promises to erase light-to-moderate scratches, scuffs, acid etching, and even graffiti without paying a professional glazier. Everything arrives in a palm-sized box: a color-printed guide, three progressive abrasive discs, polishing felt, and a universal ¼-inch shank that drops straight into any corded or cordless drill. No chemicals, no heat guns—just add water and patience.
What Makes It Stand Out:
It’s the only consumer kit that borrows the company’s commercial “xNet PRO” sanding lattice, cutting work time by roughly 3× while keeping glass temps low. The 3-inch diameter head navigates tight curves on auto windows, mirrored closet doors, and even tempered shower panels without skipping or hopping. Clear, photo-rich instructions remove guesswork for first-timers.
Value for Money:
At $39.97 you’re buying one professional call-out fee; avoid a $200+ windshield replacement or $80 mirror swap and the tool has already paid for itself. Consumable refills cost $12, so the upfront kit stays useful for years of touch-ups.
Strengths and Weaknesses:
Pros:
- Drill-powered speed vs. hand-sanding
- Safe on laminated, tempered, and mirrored glass
- Re-usable backing pad; low-cost disc refills
Cons:
- Won’t eliminate deep gouges (>0.1 mm)
- Requires household drill and steady hand
- Wet slurry can be messy—mask nearby paint
Bottom Line:
For light cosmetic damage, this kit is the fastest, cheapest fix short of hiring a pro. Keep expectations realistic on depth, wear gloves, and you’ll restore glass to nearly invisible clarity in under an hour.
7. Avhrit Cordless Car Buffer Polisher kit w/ 2x2000mAh 21V Batteries, 6 Inch Car buffer Waxer Kit w/ 6 Variable Speed & Extra 10 PCS Attachments, Polisher for Car Detailing,Boat Sanding,Scratch Removing
Avhrit Cordless Car Buffer Polisher Kit Review
Overview:
Avhrit’s 6-inch cordless polisher arrives as an entry-level, battery-powered detailing kit aimed at weekend warriors who hate wrestling with cords. Two 21 V, 2 Ah packs, a rapid charger, and ten assorted pads/discs are tucked into one hard-shell box, all for well under the cost of a single professional detail.
What Makes It Stand Out:
True cordless freedom at this price is rare; the 4,500 rpm cap and 3-lb chassis let you chase swirls across hoods, gel-coat, or even headlights without hunting for outlets. The kit’s ten attachments (wool, foam, microfiber) cover compounding to wax-spreading, eliminating immediate add-on purchases.
Value for Money:
At $62.49 you’re getting a dual-battery rotary, pads, and a charger that would normally push past $100 when pieced together. Factor in the saved trip to a detail shop and the kit pays for itself after one full-car correction.
Strengths and Weaknesses:
- Strengths: Zero cord drag; batteries hot-swap in 60 min; quiet 75 dB motor; comfortable for vertical panels; complete accessory bundle.
- Weaknesses: 2 Ah packs give only 15-20 min of trigger time on high; plastic gear housing may heat on heavy cuts; no variable orbit—rotary only, so beginners can burn edges if careless; replacement batteries are proprietary.
Bottom Line:
For budget detailers seeking cordless convenience, the Avhrit is a commendable starter set—just buy extra pads and practice on a scrap panel first.
8. 34Pcs Glass Polishing Kit, Multifunctional Scratch Remover Window Repair Tool for Window Repair, with Felt Polishing Wheel Polishing Disc Wool Polishing Pad and Cerium Oxide Polishing Powder
Overview:
The 34Pcs Glass Polishing Kit is a budget-friendly DIY solution aimed at erasing light scratches from windshields, mirrors, aquariums, and household glass. Centered on 8 oz of industrial-grade cerium oxide powder—the same abrasive used by professional glaziers—the set bundles 25 sheets of sandpaper, two felt wheels, six felt pads, and two hook-and-loop backing discs so you can tackle everything from fingernail marks on the car windshield to water spots on the shower screen. No specialized polisher is required; a household drill and tap water are enough to start the 20-minute process touted on the box.
What Makes It Stand Out:
Most bargain kits give you a thimble of powder and a single pad. Here you get a full half-pound of cerium oxide plus a “sanding stage” with 600–3 000 grit paper that lets you feather out deeper nicks before the final polish. The 50 mm felt wheels thread directly onto a drill mandrel, turning an ordinary cordless driver into a mini glass lathe—handy for curved auto glass or headlight lenses.
Value for Money:
At $20.49 you’re paying roughly what a glass shop charges just to inspect a chip. The powder alone retails for $15, so the 33 bonus accessories feel almost free. Consumables are washable and re-usable, stretching the kit across multiple windshields or a whole house of scuffed patio tables.
Strengths and Weaknesses:
Pros: generous cerium quantity; graded sandpaper preps surface properly; pads mount on drill or hand-held backing block; clear bilingual instructions.
Cons: will not fill cracks, only surface scratches; wool pads shed until first rinse; no drill mandrel included; fine dust is messy—mask and tape-off work area.
Bottom Line:
For light scuffs, water marks, and wiper haze this kit delivers professional-looking results at a DIY price. Keep expectations realistic—deep gouges or star cracks still need resin injection—but for $20 you can restore clarity to every glass surface you own without paying a glazier’s call-out fee.
9. 3D Glass Polish – Cerium Oxide Glass Scratch Remover for Car Windows – Restores Clarity & Removes Wiper Marks, Swirls, Water Spots - 16oz
Overview:
3D Glass Polish is a cerium-oxide suspension engineered for automotive glass, promising to erase wiper haze, water-spot etching, and fine scratches without professional help. Sold in a 16-ounce bottle, it doubles as both a cosmetic restorer and a bonding prep for later ceramic or rain-repellent coatings.
What Makes It Stand Out:
Unlike all-purpose “plastic/metal” polishes, this formula is pH-neutral and milled to sub-micron size, letting it level glass without leaving the grey haze common with aluminium-oxide compounds. The extended open-time keeps the paste workable even under a rotary at 1,200 rpm, so heat doesn’t bake it on.
Value for Money:
At $2.06 per fluid ounce it looks steep beside household abrasives, yet one bottle corrects roughly 20 windshields—about $1.65 per window versus $60–$80 for a pro glass polish service. If you already own a polisher and felt pad, the ROI is immediate.
Strengths and Weaknesses:
Pros:
- Removes 90% of shallow wiper swirls and water spots in a single pass
- Rinses cleanly; no chalky residue in mouldings
- Works as a coating primer, saving an extra prep chemical
Cons:
- Deep pits or cracks are beyond its scope; physical glass repair still needed
- Requires a rotary or dual-action polisher—hand application is ineffective
- Bottle cap can leak if stored horizontally
Bottom Line:
For DIY detailers who already machine-polish paint, 3D Glass Polish is an easy, cost-effective way to add glass correction to your repertoire. It won’t replace a new windshield, but it routinely transforms a tired, glare-prone window into optically clear glass and preps it perfectly for a long-term coating.
10. CARPRO CeriGlass Glass Polish - 150mL Kit (5oz)
Overview:
CeriGlass is a pocket-sized 150 mL polish kit built to erase the hazy film, stubborn water spots, and wiper haze that sit dead-center in your field of view. The kit couples a mild cerium-oxide compound with a firm microfiber applicator, letting you tackle windshields, side glass, and even household mirrors without a machine.
What Makes It Stand Out:
Unlike all-purpose polishes, CeriGlass is purpose-built for silica; the cerium-oxide cuts fast yet finishes without ghosting. The hydrophobic residue left behind beads water for weeks, so your wipers work less and you see more. One bottle handles an entire sedan plus the bathroom vanity—rare versatility at this price.
Value for Money:
At $5.20 per ounce it lands mid-pack, but you’re getting a dedicated glass formula and a reusable pad that survives multiple washes. Skip a single professional detailing session and the kit pays for itself twice over.
Strengths and Weaknesses:
Pros
- Hand-application only—no rotary needed
- Removes light pitting, salt film, and etched water spots in one pass
- Leaves behind slick, rain-repellent layer
Cons
- Won’t touch deep stone chips or cracks
- Generates fine dust; keep a second microfiber handy
- Scent is sharp; use in ventilated area
Bottom Line:
For drivers tired of squinting through streaks or paying $40 for a glass polish add-on, CeriGlass is a no-brainer. Keep a bottle in the glovebox and you’ll maintain crystal-clear, water-shedding glass for a year—no machines, no mystery ingredients, no excuses.
Why Glass Polishing Matters More Than You Think
Safety Through Optical Clarity
Micro-scratches act like thousands of tiny prisms, scattering oncoming headlights into starbursts that fatigue your eyes and slow reaction times. By leveling those ridges, you restore crisp focus and reduce night-driving stress.
Preventing Costly Replacements
A quality polish can shave 75–90 % off the depth of light wiper trails and etching. That’s often enough to bring a “failed” windshield back within DOT light-scatter limits, saving you the OEM glass bill and calibration fees for lane-departure cameras.
Enhancing Your Vehicle’s Resale Appeal
Buyers swipe faster than Tinder when they spot foggy glazing. Flawless glass subconsciously signals a well-kept car, adding tangible book value—especially on panoramic-roof SUVs where glass acreage is high.
Understanding Glass Hardness and Scratch Science
Windshield glass hovers around 6.5 on the Mohs scale, harder than paint clear-coat (2–4) but softer than quartz sand that routinely hitchhikes on wiper blades (7). Scratches deeper than ~12 µm generally require compound-grade abrasives, while haze in the 1–6 µm zone can be corrected with ultra-fine cerium oxide. Knowing the depth keeps you from over-killing with grit that removes unnecessary material.
Key Components Found in Professional-Grade Kits
Abrasive Compounds and Their Chemistry
Cerium oxide remains the gold standard; its rare-earth particles fracture into still-sharp micro-crystals, maintaining cut rate while producing a high-gloss finish. Some blends add aluminum oxide for faster leveling or zirconium for hydrophobicity.
Pad Types: Foam, Felt, Wool, and Woven Microfiber
- Foam: Conforms to mild curvature and disperses heat—ideal for final finishing.
- Felt: Dense and aggressive, best for deeper defect removal on flat regions.
- Wool: Cuts quickly but can chatter on tempered glass; use with lubricant gels.
- Woven Microfiber: Balanced cut and heat management for rotary or dual-action machines.
Lubricants and Cooling Agents
Glass-specific lubricants reduce amorphous “fracture haze” by keeping surface temps below 104 °F (40 °C). Look for glycerin-water emulsions or proprietary coolants with UV tracers so you can verify complete wipe-off.
Backing Plates and Adaptors
Reinforced nylon or glass-filled polypropylene backing plates dampen vibration. M14 × 2 mm is the dominant thread for rotary polishers in North America, while 5/16”-24 caters to some pneumatic tools—verify before you buy.
Machine vs. Hand Polishing: Which Route Fits You?
Rotaries deliver speed (1 ft² / 90 s) but demand steady motion to prevent heat cracks. Dual-action orbitals are safer for novices, oscillating 8 mm–21 mm throw patterns that never dwell long enough to cook glass. Hand kits suffice for spot repairs—think edge-of-windshield wiper arcs—but expect quadruple the labor and an elbow workout worthy of a CrossFit badge.
Decoding Abrasive Grades: From Heavy Cut to Jeweler’s Finish
Manufacturers love jargon like “2-step” or “3-step.” Translation: Step 1 is a 10-µm aluminum oxide slash that removes pitting; Step 2 drops to 3-µm cerium for haze removal; Step 3 finishes at 0.5 µm, achieving optical gloss. Skip grades and you’ll chase ghost hazes for hours.
Ergonomics and User Comfort Features
Look for thumb-index finger grips on hand pads, vibration-dampening rings on backing plates, and pre-punched center holes that align with vacuum-fed water hoses if you plan wet polishing. Your wrists will thank you after 45 minutes of windshield yoga.
Wet vs. Dry Polishing Techniques
Wet extends pad life 3×, slashes dust, and keeps cerium slurry workable, but requires painter’s tape masking to keep slurry from drying into A-pillar crevices. Dry offers visibility—watch scratches disappear in real time—but demands a dust mask rated for crystalline silica and frequent pad cleaning to prevent caking.
Safety Gear You Should Never Skip
- ANSI Z87.1-rated goggles: Cerium bounce-back at 3,000 rpm hurts.
- N95 or P100 respirator: Aluminum oxide is a lung irritant.
- Nitrile gloves: Slurry dries skin like desert wind.
- Ground-fault circuit interrupter (GFCI) when power tools meet water hoses.
Common Mistakes Beginners Make
Using paint compound on glass (too soft), pressing down on a rotary (induces concave burns), or polishing in direct sun (flash-dries slurry). The cardinal sin: skipping a 50:50 isopropyl wipe-down—oils left behind masquerade as swirls, sending you into a Sisyphean re-polish loop.
Maintenance Tips After Polishing
Apply a silica-based glass coating within 24 h while the surface energy is still high. Replace wiper inserts every 6–9 months and keep the washer reservoir topped with zero-solvent fluid; many blue washer fluids contain ammonia that strips fresh coatings.
Budget vs. Premium: Where Extra Dollars Go
Entry kits repackage generic cerium and single-density foam. Premium offerings source optically classified cerium (99.9 % purity), color-coded pads, and include laser-cut shims that correct pad wobble at 4,000 rpm. Translation: 30 % faster cut, 50 % longer pad life, and a finish you can read newsprint through.
Storage and Shelf-Life Considerations
Cerium oxide is hygroscopic; close lids tightly or you’ll get rock-hard clumps. Store pads in sealed zip bags with a silica pack to prevent mold in humid climates. Liquids separate—shake annually and keep above 40 °F (4 °C) to stop glycerin from precipitating.
Warranty and Support: What to Look For
Reputable sellers offer 24-month defect warranties on backing plates and at least a 30-day performance guarantee on compounds—insist on written documentation. Email support should respond within 48 h with grit-micron data sheets; anything less signals a rebranded commodity product.
Eco-Friendly Disposal of Used Compounds and Pads
Collect slurry in a 5-micron paint strainer, let water evaporate, and seal the dried residue in a cat-litter bucket—cerium is inert but may contain trace heavy metals from prior glass treatments. Pads contaminated with petroleum lubricants must go to a certified hazmat facility; check your county’s household hazardous-waste schedule.
Frequently Asked Questions
-
Can I polish tempered side glass the same way as laminated windshield glass?
Yes, but tempered is thinner and heats faster—keep pad speed below 1,200 rpm and check surface temps with an IR gun. -
How often should I polish my windshield?
Only when defects appear. Over-polishing removes UV-blocking laminates; limit total lifetime removal to <50 µm. -
Will polishing fix deep rock chips?
No. Chips penetrate the plastic interlayer and require resin injection or glass replacement. -
Is cerium oxide safe for tinted windows?
Yes, factory tint is inside the glass; film tints on the interior are unaffected as long as you mask edges from slurry seepage. -
Can household baking soda substitute for cerium?
It’s softer (Mohs 2.5) and rounded—expect 10× the labor and a milky finish. -
Do I need a water-fed polisher for windshields?
Not mandatory, but water cools and extends pad life; household spray bottles work for small areas. -
Why do I see holograms after machine polishing?
Pad fibers micro-marring the surface; drop down to a 0.5-µm cerium finish with a soft foam pad at 800 rpm. -
How long does a polished surface stay clear?
With a silica sealant and proper wiper care, expect 12–18 months before micro-wear returns. -
Are DIY kits legal for windshield repair businesses?
Commercial services must meet ANSI ROLAGS; DIY kits lack certified testing—use only on personal vehicles. -
Can I polish headlights with the same kit?
Only if the compound is labeled safe for polycarbonate; glass cerium is too aggressive and will yellow plastic.